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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Having an issue with the -1 result in Ruby. When ever I return -1 h == window or h < window it times out. But when I return the values h, window it will show 10, 10 or even if I put return -2, it will return -2 and not time out... Really weird, otherwise I would of enjoyed this kata.